Specifications: Frequency range: 20~20kHz; Microphone sensitivity:-54±2dB; Operating time: 10±0.3 hours; Standby time: over 60 days; Input: DC5.0±0.5V, Max500mA; Battery: Li-ion battery capacity 3.7V 350mAH. 2, Using the Headphones Fix the ‘Sound pick up’ on the collar or shirt packet with ‘Wear clamps’. Switch on the headphone (On/Off). Adjust the volume to be appropriate(both side). Note: if the squeak is happening, please switch off the headphones first, then adjust the both volume to minimum, switch on the headphone again, and adjust the volume higher to appropriate again. 3,Charging When the red LED on the ‘Indicator light’ is lit, the build-in battery is less than 20%. Please charge it using the micro USB wire in the package. Input power is 5±0.5V. Please use the 5V power adapter which conform with national safety standards. Note: The charging time may not be more than 24 hours. 4,Storage and maintenance When the headphones is not in use, turn off the power. Can use a clean, soft cloth daily clean the whole device. Note: the pickup box is not water proof design. So do not use wet cloth to clean this part. Particularly, The chemical solvent cleaning can not be use! such as: pure alcohol, acetone, etc.

Product Features

This is a Bone Conduction Hearing Aids. Both sides could receive voice and can adjust the volume seperately.Compared with tradtional hearing aids, it is more comfortable and healthy.

our product could receive voice by the skull. Release the ears to listen the world, liberated the ear, far away from dangerous, response to the surrounding situation quickly, suitable for walking, running, climbing, skating, riding, sport, etc. No eardrum damage, healthy and eco-friendly. It is suitable for child, young people who uses the headphone frequently to avoid ear damage.

The sound transmits through the bone to auditory nerve, perfectly suitable for people who has trouble in listening. No need put into ear, easy to clean, to improve the air flows in the ear, enhanced discharge and evaporation, to improve the reliability of the precipitating bacterial clearance, to avoid more ear disease and delay the hearing loss.